Clamping device

Abstract

The utility model provides a clamping device, and relates to the technical field of vehicle auxiliary tools. The clamping device is used for clamping and positioning the electric power steering system and comprises a bottom plate, a positioning piece and a multi-angle clamp, the positioning piece and the multi-angle clamp are both installed on the bottom plate, the positioning piece is used for positioning a main body of the electric power steering system, the multi-angle clamp is provided with a clamping head, and the clamping head is used for clamping the electric power steering system. The clamping head is used for clamping and fixing the input shaft of the electric power steering system, the position of the clamping head relative to the bottom plate is adjustable in a three-dimensional space, and after a main body of the electric power steering system is positioned on the bottom plate through the positioning piece and the relative position of the main body and the bottom plate is fixed, the position of the clamping head relative to the bottom plate in the three-dimensional space is adjusted. According to the clamping device, the clamping head can clamp and position the input shafts at different positions in various electric power steering systems, so that the clamping device realizes universal clamping and positioning of the various electric power steering systems.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle auxiliary tooling, in particular to a clamping device. Background Art

[0002] The Electric Power Steering (EPS) system is a power steering system that directly relies on the motor to provide auxiliary torque. When the vehicle is turning at low speed, it provides sufficient assist torque to assist the driver in completing the steering operation, making steering easier and reducing the driver's burden. When the vehicle is turning at high speed, it provides a smaller assist torque to ensure that the driver has a good sense of the road and ensure the stability of the vehicle during driving.

[0003] Generally, an electric power steering system includes a main body and an input shaft, through which the driver's steering intention is transmitted to the wheels. During the production and maintenance of the electric power steering system, the electric power steering system needs to be clamped and positioned. However, the existing clamping device for clamping the electric power steering system is difficult to achieve commonality among various electric power steering systems, resulting in high tooling costs. Utility Model Content

[0004] The purpose of the utility model is to provide a clamping device, which can realize universal clamping of various electric power steering systems and reduce costs.

[0005] The embodiments of the present invention can be implemented in the following ways:

[0006] A clamping device for clamping and positioning an electric power steering system; the clamping device comprises:

[0007] Base plate;

[0008] a positioning member, the positioning member being mounted on the base plate and used for positioning a main body of the electric power steering system; and

[0009] A multi-angle clamp is installed on the base plate and has a clamping head, which is used to clamp and fix the input shaft of the electric power steering system, and the position and angle of the clamping head relative to the base plate are adjustable in three-dimensional space.

[0010] Optionally, the multi-angle clamp includes a support seat, and the clamping head is installed on the support seat; a first slide groove is provided on the upper end surface of the base plate, and the support seat can be slidably matched with the first slide groove so that the position of the clamping head relative to the base plate can be adjusted along the extension direction of the first slide groove.

[0011] Optionally, the multi-angle clamp also includes a height adjustment member, and the clamping head is connected to the support seat via the height adjustment member; a second slide groove extending along the height direction is provided on the support seat, and the height adjustment member can be slidably matched with the second slide groove so that the position of the clamping head relative to the base plate can be adjusted along the height direction.

[0012] Optionally, the multi-angle clamp further comprises a first connecting bolt and a first locking nut, wherein the first connecting bolt and the first locking nut form a first bolt pair, and the height adjusting member is connected to the second slide groove of the support seat through the first bolt pair;

[0013] Among them, when the first locking nut is tightened on the first connecting bolt, the relative position of the height adjusting member and the support seat is fixed; when the first locking nut loosens the first connecting bolt, the height adjusting member can slide along the second sliding groove, and the height adjusting member can rotate around the axis of the first connecting bolt.

[0014] Optionally, a third slide groove is further provided on the height adjustment member, and the first connecting bolt is arranged through the third slide groove, so that the position of the clamping head relative to the base plate can be adjusted along the extension direction of the third slide groove.

[0015] Optionally, the axis of the first connecting bolt is parallel to the extension direction of the first sliding groove.

[0016] Optionally, the multi-angle clamp further comprises a direction adjusting member, the direction adjusting member is rotatably mounted on one end of the height adjusting member, and the clamping head is mounted on the direction adjusting member.

[0017] Optionally, the multi-angle clamp further comprises a second connecting bolt and a second locking nut, the second connecting bolt and the second locking nut form a second bolt pair, the direction adjusting member is connected to the clamping head via the second bolt pair; the axial direction of the second connecting bolt is perpendicular to the rotation axis of the direction adjusting member relative to the height adjusting member;

[0018] When the second locking nut is tightened on the second connecting bolt, the direction adjusting member is relatively fixed to the clamping head; when the second locking nut loosens the second connecting bolt, the clamping head can rotate relative to the direction adjusting member around the axial direction of the second connecting bolt.

[0019] Optionally, the clamping head includes an annular clamping sleeve and a plurality of locking screws distributed along the circumference of the annular clamping sleeve, the plurality of locking screws are threaded on the annular clamping sleeve, and one end of the plurality of locking screws is located in the inner hole of the annular clamping sleeve; the annular clamping sleeve is used to sleeve the input shaft; and the plurality of locking screws are used to clamp the input shaft.

[0020] Optionally, the positioning member includes a support block fixedly mounted on the base plate and a rack top block slidably disposed on the base plate; the rack top block is used to support and position the rack of the electric power steering system; the support block is used to be fixedly connected to the column of the electric power steering system.

[0021] The beneficial effects of the clamping device provided by the embodiment of the utility model include:

[0022] The embodiment of the utility model provides a clamping device, which is used for clamping and positioning an electric power steering system. The clamping device includes a base plate, a positioning member and a multi-angle clamp, the positioning member and the multi-angle clamp are both mounted on the base plate, and the positioning member is used to position the main body of the electric power steering system, the multi-angle clamp has a clamping head, through which the input shaft of the electric power steering system is clamped and fixed, and the position of the clamping head relative to the base plate is adjustable in three-dimensional space, when the main body of the electric power steering system is positioned on the base plate by the positioning member, and the relative position with the base plate is fixed, by adjusting the position of the clamping head relative to the base plate in three-dimensional space, the clamping head can clamp and position the input shafts in different positions of various electric power steering systems, so that the clamping device realizes universal clamping and positioning of various electric power steering systems, which helps to reduce tooling costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above features and advantages of the present invention can be better understood after reading the detailed description of the embodiments of the present disclosure in conjunction with the following drawings. In the drawings, the components are not necessarily drawn to scale, and components with similar related properties or features may have the same or similar reference numerals.

[0024] Figure 1 A schematic structural diagram of a clamping device according to one aspect of the utility model clamping and positioning an electric power steering system is shown;

[0025] Figure 2 A schematic diagram of the overall structure of a clamping device provided according to one aspect of the utility model at a first viewing angle is shown;

[0026] Figure 3 A schematic structural diagram of a multi-angle clamp in a clamping device provided according to one aspect of the utility model is shown;

[0027] Figure 4A schematic diagram of the overall structure of the clamping device provided according to one aspect of the utility model at a second viewing angle is shown;

[0028] Figure 5 Shows Figure 4 Schematic diagram of the cross-sectional structure at AA in the middle;

[0029] Figure 6 Shows Figure 4 Schematic diagram of the cross-sectional structure at BB in the middle.

[0030] Reference numerals:

[0031] 10-clamping device; 110-bottom plate; 111-first slide slot; 112-fourth slide slot; 120-support block; 121-first support block; 122-second support block; 130-rack top block; 200-multi-angle clamp; 210-support seat; 211-second slide slot; 212-locking bolt; 220-height adjustment member; 221-third slide slot; 230-first bolt pair; 231-first connecting bolt; 232-first locking nut; 241-direction adjustment member; 242-third locking nut; 250-second bolt pair; 251-second connecting bolt; 252-second locking nut; 260-clamping head; 261-annular clamping sleeve; 262-locking screw; 263-connecting part; 20-electric power steering system; 21-column; 22-rack; 23-connecting seat; 24-input shaft. DETAILED DESCRIPTION

[0032] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. Note that the aspects described below in conjunction with the accompanying drawings and specific embodiments are only exemplary and should not be construed as limiting the scope of protection of the present invention.

[0033] In the description of the present utility model, it should be noted that if the terms "upper", "lower", "inside", "outside", "vertical" and the like appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model.

[0034] At the same time, it should be noted that the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified or limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, an integral connection, or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or the internal communication of two components, etc. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Figure 1 This is a schematic diagram of the structure of the clamping device 10 provided in this embodiment when clamping and positioning the electric power steering system 20. Figure 2 This is a schematic diagram of the overall structure of the clamping device 10 provided in this embodiment at a first viewing angle. Figure 1 and Figure 2 This embodiment provides a clamping device 10 for clamping and positioning an electric power steering system 20.

[0037] like Figure 1 As shown, the electric power steering system 20 includes a main body and an input shaft 24 , and the clamping device 10 includes a base plate 110 , a positioning member and a multi-angle clamp 200 . The positioning member and the multi-angle clamp 200 are both installed on the base plate 110, and the positioning member is used to position the main body of the electric power steering system 20. The multi-angle clamp 200 has a clamping head 260, which is used to clamp and fix the input shaft 24 of the electric power steering system 20, and the position of the clamping head 260 relative to the base plate 110 is adjustable in three-dimensional space. When the main body of the electric power steering system 20 is positioned on the base plate 110 through the positioning member and its relative position with the base plate 110 is fixed, the position of the clamping head 260 relative to the base plate 110 in three-dimensional space is adjusted, so that the clamping head 260 can clamp and position the input shafts 24 at different positions in a variety of electric power steering systems 20. In this way, the clamping device 10 realizes universal clamping and positioning of a variety of electric power steering systems 20, which helps to reduce tooling costs.

[0038] Specifically, the electric power steering system 20 shown in this embodiment has a main body including a pipe column 21 and a rack 22 located at one axial end of the pipe column 21. The positioning member includes a support block 120 fixedly mounted on the base plate 110 and a rack top block 130 slidably disposed on the base plate 110, the rack top block 130 is used to clamp and position the rack 22 of the electric power steering system 20, and the support block 120 is used to be fixedly connected to the pipe column 21 of the electric power steering system 20, so that the main body is positioned through the cooperation of the support block 120 and the rack top block 130. It can be understood that in other embodiments, the specific structure of the positioning member can also be adaptively adjusted according to the type of the electric power steering system 20.

[0039] Optionally, the support block 120 includes a first support block 121 and a second support block 122, and the first support block 121 and the second support block 122 are both fixedly mounted on the bottom plate 110. Two connection seats 23 are provided on the pipe column 21, and the first support block 121 and the second support block 122 correspond to the two connection seats 23 respectively, and are fixedly connected to the connection seats 23 by fasteners such as bolts, so as to realize the positioning of the pipe column 21.

[0040] Optionally, the bottom plate 110 is a plate-shaped member, on which a fourth slide groove 112 is formed, and the rack top block 130 is slidably matched with the fourth slide groove 112, so that the rack top block 130 can be adjusted in position along the extension direction of the fourth slide groove 112. In this embodiment, the extension direction of the fourth slide groove 112 is consistent with the connection direction of the first support block 121 and the second support block 122.

[0041] Figure 3 This is a schematic structural diagram of the multi-angle clamp 200 in the clamping device 10 provided in this embodiment. Figure 4 This is a schematic diagram of the overall structure of the clamping device 10 provided in this embodiment at a second viewing angle, Figure 5 for Figure 4 The cross-sectional structure diagram at AA in the middle. Please refer to Figure 1-Figure 5 In this embodiment, the multi-angle clamp 200 includes a support base 210, and a clamping head 260 is mounted on the support base 210. A first slide groove 111 is provided on the upper end surface of the bottom plate 110, and the support base 210 can slidably cooperate with the first slide groove 111, so that the position of the clamping head 260 relative to the bottom plate 110 can be adjusted along the extension direction of the first slide groove 111.

[0042] Optionally, the first slide groove 111 is a through groove penetrating the bottom plate 110, and the multi-angle clamp 200 further includes a locking bolt 212, which passes through the first slide groove 111 from the lower side of the bottom plate 110 and is screwed to the support seat 210. When the locking bolt 212 is tightened, the position of the support seat 210 relative to the bottom plate 110 is locked and fixed; when the locking screw 262 is loosened, the support seat 210 is slidably matched with the first slide groove 111 through the locking screw 262, so that the position can be adjusted along the extension direction of the first slide groove 111. Specifically, the extension direction of the first slide groove 111 is consistent with the extension direction of the fourth slide groove 112.

[0043] Furthermore, the multi-angle clamp 200 further includes a height adjustment member 220, through which the clamping head 260 is connected to the support seat 210. The support seat 210 is provided with a second slide groove 211 extending in the height direction, and the height adjustment member 220 can be slidably matched with the second slide groove 211, so that the position of the clamping head 260 relative to the bottom plate 110 can be adjusted in the height direction. Specifically, in this embodiment, the height direction is perpendicular to the upper end surface of the bottom plate 110, so that the height direction is perpendicular to the extension direction of the first slide groove 111.

[0044] Optionally, the multi-angle clamp 200 further includes a first connecting bolt 231 and a first locking nut 232 , wherein the first connecting bolt 231 and the first locking nut 232 form a first bolt pair 230 , and the height adjustment member 220 is connected to the second slide groove 211 of the support seat 210 via the first bolt pair 230 . When the first locking nut 232 is tightened on the first connecting bolt 231, that is, the first bolt pair 230 is in a tightened state, the relative position of the height adjustment member 220 and the support seat 210 is fixed; when the first locking nut 232 loosens the first connecting bolt 231, that is, the first bolt pair 230 is in a loosened state, the relative position of the height adjustment member 220 and the support seat 210 is adjustable. Specifically, on the one hand, the height adjustment member 220 can slide along the second slide groove 211 relative to the support seat 210, thereby realizing the position adjustment of the clamping head 260 in the height direction, and on the other hand, the height adjustment member 220 can rotate around the axis of the first connecting bolt 231, thereby realizing the angle adjustment of the clamping head 260 around the axis of the first connecting bolt 231.

[0045] Optionally, the axis of the first connecting bolt 231 is parallel to the extension direction of the first sliding slot 111 , so that the rotation of the height adjustment member 220 around the axis of the first connecting bolt 231 can be regarded as an angle adjustment around the extension direction of the first sliding slot 111 .

[0046] Furthermore, the height adjustment member 220 is also provided with a third slide groove 221, and the first connecting bolt 231 is arranged through the third slide groove 221, so that the height adjustment member 220 can slide relative to the first connecting bolt 231 in the extension direction of the third slide groove 221, so that the position of the clamp relative to the bottom plate 110 can be adjusted along the extension direction of the third slide groove 221. At the same time, since the first connecting bolt 231 is arranged through the third slide groove 221, the extension direction of the third slide groove 221 is perpendicular to the axis of the first connecting bolt 231, so that by adjusting the extension direction of the first slide groove 111, the extension direction of the second slide groove 211 and the extension direction of the third slide groove 221, the position of the clamping head 260 can be adjusted in the three-dimensional coordinate system of space.

[0047] Specifically, Figure 2As shown, the direction of the first slide slot 111 is taken as the x direction, as Figure 3 As shown, the direction of the second slide groove 211 is taken as the z direction, and the direction perpendicular to both the x direction and the z direction is taken as the y direction, so as to construct a three-dimensional space coordinate system according to the x direction, the y direction and the z direction. In this way, the sliding of the support seat 210 along the first slide groove 111 realizes the position adjustment of the clamping head 260 along the x direction; the sliding of the height adjustment member 220 along the second slide groove 211 realizes the position adjustment of the clamping head 260 along the z direction; the combined movement of the sliding of the height adjustment member 220 along the third slide groove 221, the sliding along the second slide groove 211 and the rotation around the axis of the first connecting bolt 231 realizes the position adjustment of the clamping head 260 along the y direction. At the same time, the rotation of the height adjustment member 220 around the axis of the first connecting bolt 231 realizes the rotation angle adjustment of the clamping head 260 around the x direction.

[0048] Figure 6 Shows Figure 4 The cross-sectional structure diagram at the middle BB. Please refer to Figure 1-Figure 6 In this embodiment, the multi-angle clamp 200 further includes a direction adjustment member 241. The direction adjustment member 241 is rotatably mounted on one end of the height adjustment member 220, and the clamping head 260 is mounted on the direction adjustment member 241, so that the clamping head 260 is driven to adjust the angle by the rotation of the direction adjustment member 241 relative to the height adjustment member 220. Specifically, the extension direction of the rotation axis of the direction adjustment member 241 relative to the height adjustment member 220 is consistent with the extension direction of the third slide slot 221. Since the third slide slot 221 is located in the yz plane, the rotation axis of the direction adjustment member 241 relative to the height adjustment member 220 is perpendicular to the x direction.

[0049] Optionally, the direction adjustment member 241 is threadedly connected to the height adjustment member 220, and a third locking nut 242 is also installed on the direction adjustment. The direction adjustment member 241 and the height adjustment member 220 can be locked by the third locking nut 242, so that in the locked state, the relative position between the direction adjustment member 241 and the height adjustment member 220 is fixed.

[0050] Furthermore, the multi-angle clamp 200 further includes a second connecting bolt 251 and a second locking bolt 212, and the second connecting bolt 251 and the second locking nut 252 form a second bolt pair 250. The direction adjustment member 241 and the clamping head 260 are connected by the second bolt pair 250, and accordingly, the clamping head 260 and the direction adjustment member 241 have through holes for the second connecting bolt 251 to pass through. The axial direction of the second connecting bolt 251 is perpendicular to the rotation axis of the direction adjustment member 241 relative to the height adjustment member 220, and the clamping head 260 is finely adjusted by rotating the clamping head 260 around the axis of the second connecting bolt 251, thereby reducing the difficulty of adjustment. By rotating the height adjusting member 220 around the first connecting bolt 231, rotating the direction adjusting member 241 relative to the height adjusting member 220, and rotating the clamping head 260 around the axis of the second connecting bolt 251, the angle adjustment of the clamping head 260 in three-dimensional space is achieved. By adjusting the clamping head 260 at any position and at any angle in three-dimensional space, the clamping head 260 can clamp the input shaft 24 of various electric power steering systems 20.

[0051] Please continue to refer to Figure 1-Figure 6 In this embodiment, the clamping head 260 includes an annular clamping sleeve 261 and a plurality of locking screws 262 distributed along the axial direction of the annular clamping sleeve 261. The plurality of locking screws 262 are screwed on the annular clamping sleeve 261, and one end of the plurality of locking screws 262 is located in the inner hole of the annular clamping sleeve 261. Before clamping, the annular clamping sleeve 261 and the input shaft 24 are positioned at the same position by adjusting the position in three-dimensional space, and the inner hole axis of the annular clamping sleeve 261 is parallel to the axis of the input shaft 24 by adjusting the angle in three-dimensional space; during clamping, the annular clamping sleeve 261 is sleeved outside the input shaft 24, and then the plurality of locking screws 262 are screwed, and the input shaft 24 is clamped in the inner hole of the annular clamping sleeve 261 by the joint action of the plurality of locking screws 262, so that the clamping head 260 clamps and fixes the input shaft 24.

[0052] Specifically, the annular clamping sleeve 261 is provided with a plurality of threaded holes extending in the radial direction, and the bolt holes are through holes penetrating the annular clamping sleeve 261. A plurality of locking screws 262 are screwed in the threaded holes, and one end of the locking screws can pass through the threaded holes and extend into the inner hole of the annular clamping sleeve 261, so that the input shaft 24 can be clamped and positioned by the plurality of locking screws 262 clamping the input shaft 24 together. Optionally, in this embodiment, the number of locking screws 262 is three. It is understandable that in some other embodiments, the number of locking screws 262 can also be specifically set according to requirements.

[0053] The clamping head 260 further includes a connecting portion 263 disposed on the outer periphery of the annular clamping sleeve 261, and a through hole is disposed on the connecting portion 263 for the second connecting bolt 251 to penetrate, so that the second bolt pair 250 connects the connecting portion 263 with the direction adjusting member 241, thereby realizing the connection between the clamping head 260 and the direction adjusting member 241. The axis of the through hole disposed on the connecting portion 263 for the second connecting bolt 251 to penetrate and the axis of the inner hole of the annular clamping sleeve 261 are in a mutually perpendicular state.

[0054] It should be noted that since each position in this embodiment is a spatial position, in the description of this embodiment, "mutually perpendicular" means that the extension directions of the two are perpendicular to each other, and the two mutually perpendicular directions may be on two parallel planes. At the same time, in the description of this embodiment, "consistent directions" means that two consistent directions are parallel or overlap with each other.

[0055] The clamping device 10 provided by the embodiment of the utility model, when in use, firstly, the connection seat 23 on the pipe column 21 is fixedly connected to the first support block 121 and the second support block 122 by bolts, and the rack top block 130 is slid to abut and position with the rack 22 of the electric power steering system 20, so as to realize the positioning of the main body of the electric power steering system 20. At this time, the position of the input shaft 24 of the electric power steering system 20 is fixed relative to the position of the bottom plate 110, and the position and angle of the clamping head 260 in the three-dimensional space are roughly adjusted by adjusting the adjustment of the support seat 210, the adjustment of the height adjustment member 220 and the adjustment of the direction adjustment member 241 in the multi-angle clamp 200, and then the clamping head 260 is finely adjusted by rotating around the axis of the second connection bolt 251, so that the clamping head 260 can finally clamp and fix the input shaft 24. Since the clamping head 260 on the multi-angle clamp 200 can adjust the position and angle in three-dimensional space, it can adapt to the clamping of the input shaft 24 in different positions, thereby realizing universal clamping of various electric power steering systems 20, having a wide range of applications, and helping to reduce tooling costs.

[0056] The above is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technology in this field within the technical scope disclosed by the present invention should be included in the protection scope of the present invention.

Claims

1. A clamping device, characterized in that: Used for clamping and positioning an electric power steering system; the clamping device comprises: Base plate; a positioning member, the positioning member being mounted on the base plate and used for positioning a main body of the electric power steering system; and A multi-angle clamp is installed on the base plate and has a clamping head, which is used to clamp and fix the input shaft of the electric power steering system, and the position and angle of the clamping head relative to the base plate are adjustable in three-dimensional space.

2. The clamping device according to claim 1, characterized in that: The multi-angle clamp includes a support seat, and the clamping head is installed on the support seat; a first slide groove is arranged on the upper end surface of the base plate, and the support seat can be slidably matched with the first slide groove so that the position of the clamping head relative to the base plate can be adjusted along the extension direction of the first slide groove.

3. The clamping device according to claim 2, characterized in that: The multi-angle clamp also includes a height adjustment member, and the clamping head is connected to the support seat through the height adjustment member; a second slide groove extending along the height direction is provided on the support seat, and the height adjustment member can be slidably matched with the second slide groove so that the position of the clamping head relative to the base plate can be adjusted along the height direction.

4. The clamping device according to claim 3, characterized in that: The multi-angle clamp further comprises a first connecting bolt and a first locking nut, wherein the first connecting bolt and the first locking nut form a first bolt pair, and the height adjusting member is connected to the second slide groove of the support seat through the first bolt pair; Among them, when the first locking nut is tightened on the first connecting bolt, the relative position of the height adjusting member and the support seat is fixed; when the first locking nut loosens the first connecting bolt, the height adjusting member can slide along the second sliding groove, and the height adjusting member can rotate around the axis of the first connecting bolt.

5. The clamping device according to claim 4, characterized in that: The height adjustment member is also provided with a third slide slot, and the first connecting bolt is arranged through the third slide slot, so that the position of the clamping head relative to the base plate can be adjusted along the extension direction of the third slide slot.

6. The clamping device according to claim 4, characterized in that: The axis of the first connecting bolt is parallel to the extending direction of the first sliding groove.

7. The clamping device according to claim 3, characterized in that: The multi-angle clamp further comprises a direction adjusting member, which is rotatably mounted on one end of the height adjusting member, and the clamping head is mounted on the direction adjusting member.

8. The clamping device according to claim 7, characterized in that: The multi-angle clamp further comprises a second connecting bolt and a second locking nut, wherein the second connecting bolt and the second locking nut form a second bolt pair, and the direction adjusting member is connected to the clamping head via the second bolt pair; the axial direction of the second connecting bolt is perpendicular to the rotation axis of the direction adjusting member relative to the height adjusting member; When the second locking nut is tightened on the second connecting bolt, the direction adjusting member is relatively fixed to the clamping head; when the second locking nut loosens the second connecting bolt, the clamping head can rotate relative to the direction adjusting member around the axial direction of the second connecting bolt.

9. The clamping device according to claim 1, characterized in that: The clamping head includes an annular clamping sleeve and a plurality of locking screws distributed along the circumference of the annular clamping sleeve, wherein the plurality of locking screws are threadedly connected to the annular clamping sleeve, and one end of the plurality of locking screws is located in the inner hole of the annular clamping sleeve; the annular clamping sleeve is used to sleeve the input shaft; and the plurality of locking screws are used to clamp the input shaft.

10. The clamping device according to claim 1, characterized in that: The positioning member includes a support block fixedly mounted on the base plate and a rack top block slidably arranged on the base plate; the rack top block is used to support and position the rack of the electric power steering system; the support block is used to be fixedly connected to the column of the electric power steering system.

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